Again we are coming back to the same argument of "well you really shouldn't be having encounters at those ranges".
And I agree! Which is why the simplest way to communicate to the DM and players that encounters should not happen at those ranges....is to remove the range! If the longest range thing in the game is 200 feet, congratulations you won't have to even consider if players would try to start fights at 600 feet.
Also keep in mind we are having this conversation at the same time that our newest playtest package has introduced several new long range options for wizards and sorcerers. And I'm sorry, but if players are given the ability to do things at long ranges....but never actually do them....they are going to feel like that ability is wasted (because it was!). So if its just a bad idea to be doing fights at these ranges (either because its boring, or because smart enemies won't ever do it, etc)....then lets just nip it in the bud and remove these extreme ranges.
I'm just flabbergasted that we keep defending these extreme ranges, but then every counter argument explains how extreme range combats are just silly and shouldn't be happening. Except you also forget we all aren't seasoned dms with years of experience under our belts. Maybe a new dms goes "hmmm ok bow range is 600 feet, maybe it will be cool to have a shootout at long range!"..... and then sulks at a super boring fight where half of his players were complaining with arms crossed while only the archer is having any fun.